Uncovering resonances hiding behind events with multiple invisible particles at a collider is essential for the discovery of new physics.
Events with missing energy are typically favored in popular new physics scenarios with dark matter candidates [1]}, such as the weak scale supersymmetry [2]}, [3]} and the extra-dimensional model [4]}.
These new physics scenarios have conserved discrete symmetries, like \(R\) -parity and \(KK\) -parity, stabilizing the dark matter and leaving, at least, a pair of invisible particles in the new physics event.
While the most straightforward approach to discovering intermediate resonances is finding out Breit-Wigner resonance peaks in a reconstructed invariant mass distribution, however, the resonance peak cannot be reconstructed in such new physics events with invisible particles.
